Dormer E5503/8 – 3/8" BSPT Rc HSS Straight Flute Hand Tap Ductsure Access Panel (Standard White Powder Coated) - 18" x 18" (457mm x 457mm) repeatable measurements across a generous

repeatable measurements across a generous 600 mm (24") measuring range

2 flute design for efficient chip evacuation

it maintains stable cutting and smooth chip evacuation across common engineering materials

this caliper delivers reliable accuracy and ease of use for machining

Secure Insert Clamping – Reliable clamping system for high cutting forces

Dormer E5503/8 – 3/8" BSPT Rc HSS Straight Flute Hand Tap Ductsure Access Panel (Standard White Powder Coated) - 18" x 18" (457mm x 457mm) repeatable measurements across a generousThe Dormer E5503 8 is a high quality straight flute hand tap engineered for producing Rc 3 8" British Standard Pipe Taper (BSPT) internal threads with 19 TPI. Designed with chamfer form C and a 23xP semi bottoming lead, it is suitable for both through hole and blind hole threading applications up to 1. 5xD depth. Manufactured from premium high speed steel with a bright uncoated finish, this tap provides dependable cutting performance in free machining